The Lullaby Earth Breeze crib mattress is made right here in the U.S.A. from domestic and imported fabric and components. The Breeze may help reduce the risk of suffocation by allowing the baby to breathe right through the surface should they end up face down. It also helps with temperature regulation as heat can dissipate more easily. The breathable outer layer can be easily removed and washed. It also features a waterproof backing, eliminating the need for a separate mattress pad. The Breeze features a waterproof mattress core for easy cleaning and a more hygienic design. A non-waterproof core may be impractical to clean or worse - not cleanable at all! A soiled mattress or non-waterproof core can lead to bacteria growth, mold and mildew. The mattress core features a firmer side for infants and a softer side for toddlers. This specialized approach offers safety and comfort as your baby grows.